CGHE members span the University of Michigan and the globe, including faculty experts, research collaborators, scholars, and community partners. Search for Members with Keywords, Sponsors, Locations, or Categories + Andrew Chang, MD Thoracic surgery with a particular focus on thoracic oncology Raymond De Vries, PhD, MA Medical and bioethics of maternity care Joseph (Joe) Kolars, MD, MACP Health professions education, health systems strengthening and capacity sharing among healthcare workers Matthias Kretzler, MD Enhancing health for kidney disease treatment